Towers
Small People Defense has 6 unique towers and each with additional abilities when upgraded. The depth in strategy comes with tower interactions and enemy mechanics.
Each upgrade costs twice the previous upgrade. Level increases grant damage relative to its cost and grant 50% more health (capped at 25 per level). Additionally, the tower’s attack speed and rotation rate (excluding Beam) are increased with each level to incentivize upgrading.
Selling a tower only returns 80% of its original value including its upgrades (90% if playing the Merchant. This amount is rounded down to discourage buying and selling infinitely. If a tower is destroyed by the Kraken or Zombie, it is automatically sold.